-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 For T60 (Intel GPU. Mine is 15" version): sudo devmem2 0xe4361254 w 0x58BF58BE
<fchmmr> I read from that address using this command: sudo devmem2 0xe4361254 w <fchmmr> I did that on my T60 running Lenovo BIOS and get this: 0xFFFFFFFF <fchmmr> I did that on my T60 (same one) running coreboot with vgarom and get this: 0x58BF58BE <fchmmr> With libreboot on a T60 (when native graphics is made to work, which at the moment it doesn't) you will instead do this: <fchmmr> sudo devmem2 0xe4361254 w 0x58BF58BE <fchmmr> Same address, different value (for making backlight controls work on the T60/intelGPU) On 15/05/14 22:09, The Gluglug wrote: > Tested in current libreboot. should work in coreboot (using > changeset 5320 or a rebase). > > <fchmmr> hey you! <fchmmr> I just got backlight controls working > PERFECTLY <fchmmr> on an X60, running libreboot with native > graphics init instead of vga oprom <fchmmr> Fn keys, that is. > <fchmmr> it'll also work in coreboot (using change set 5320) > <fchmmr> how i did it: <fchmmr> run coreboot on X60 with vgarom > <fchmmr> do that to read from that address at each brightness > level: <fchmmr> sudo devmem2 0xe4361254 w <fchmmr> it came back > with 0x879F879E every time <fchmmr> so then I tried: <fchmmr> sudo > devmem2 0xe4361254 w 0x879F879E <fchmmr> writing 0x879F879E to > address 0xe4361254 <fchmmr> and then I try the Fn keys for > brightness controls on the X60 <fchmmr> now it works. <fchmmr> > brightenss controlls work <fchmmr> this is amazing. > > Yay! > > So: that address should be written with that value, by coreboot, > at boot time. > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTdUeMAAoJEP9Ft0z50c+UVysH/jXBWLuPqnkDpWYcwYbqxuUC NsgLkkKXI8LH4q1vukx5qXrBwLsqAftFHy1n3ez8o3j0b2Uoniv18gdD5CSjymOm gBXX40f/En9MLQ93ZAHG92CH6VWumzfOtXvKRQ2yraHuaWcwHusbPUBMx0SdzSH1 k2OSTSHIi1bbbZ5VQiyJ5THIsZyG7d1uyIMI9cDcXGHaiSiYv2rHKscnZJmTFL// v6FXGZOlC+CmRb3L8aqChOC+sCS/0qGXgjuCRJjPaTJ2x1IxkjmMHHrRUidRNNxL kZ0s1cil0rTZzdj5EE8kc0a1tVpEhy7DkovEXRKijFc0ctqd8NPoChUKH/Ww3Ew= =jpXc -----END PGP SIGNATURE----- -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot